Wire reporting: (Reuters, via Meduza), (AP, via KSL)

Several passenger flights across Europe were inspected on Tuesday after a string of suspected bomb threats, with authorities saying no explosives were found and airports later resuming operations^1,3,17.

Counts differed as the day unfolded. BBC later put the number of inspected planes at seven, including two that had departed the United Kingdom, while CNA, citing AFP, said about 10 European flights were targeted^1,17. The Japan Times separately reported that an Israel-bound cruise ship was searched in Greece¹¹.

In Poland, a LOT service from London Heathrow that had been bound for Warsaw Chopin was diverted to Warsaw Modlin after a threat alert, and the airport closed briefly while 181 people were evacuated; a spokesman said nothing was found and operations restarted^14,23,25. An SAS flight from Copenhagen landed at Chopin and was searched after a threat against SK751, with a runway closed during the check^3,17,21.

In Italy, sources at Rome Fiumicino told BBC that two Ryanair flights, from Dublin and Lisbon, were searched after anonymous tips, and that the Dublin service was escorted by the Italian Air Force until landing^1,24. Global News, citing a Fiumicino official, said the Rome warnings arrived by email²¹.

Spanish officials said a Ryanair flight from Manchester landed at Murcia and that the Guardia Civil ruled out explosives after 114 passengers and seven crew left the aircraft^1,24,25. Bulgarian authorities said flights from Bergamo and Dublin were inspected at Sofia without being diverted^21,24.

The incidents followed a Monday Wizz Air Luton-to-Sofia flight that Hungarian officials said was diverted to Budapest under a NATO air-defence alert, with Gripen jets escorting the landing^3,17. London's Metropolitan Police said it was aware of threats against four Heathrow-linked aircraft and a Manchester flight and that checks identified no security issues¹⁷.

The UK government described Tuesday's events as malicious hoax threats and said aviation security processes were in place¹. UK Counter-Terrorism Policing said it had no active investigation while remaining in contact with partners²⁴. BBC reported that authorities from various countries would cooperate to assess whether the threats were coordinated¹. Japan Times said there was no claim of responsibility¹¹.